Across
- 5. solar using glass to trap heat created by
- 8. removing salt from saltwater to make freshwater
- 9. solar using solar panels to capture sunlight
- 10. to produce energy.
- 12. Gases Gases that trap heat inside of Earth’s atmosphere.
- 13. Energy- the heat from the Earth's
- 14. the use of biological material produced energy.
- 15. energy captures sunlight and use it to generate electricity.
Down
- 1. a process made to release gas
- 2. made from marine plants and animals
- 3. Can be replenished
- 4. made from preserved remains of organisms
- 6. most freshwater is locked up at the poles
- 7. Cannot be replenished fossil
- 9. form in places with porous rocks
- 11. generate electricity.